Convertible sofa bed

Abstract

A sofa convertible into a bed comprising a back rest and arm support section mounting a horizontal stationary frame adapted to slidably receive two telescoping sections which may be withdrawn to provide a horizontal sleeping surface, a self-storing continuous one-piece mattress, and a folding foot board section.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 
     
       1. A convertible sofa-bed having a retracted and extended position comprising in combination, a horizontal stationary section, a first telescoping section, first guide means operatively connecting said first telescoping section to said stationary section, a second telescoping section, second guide means operatively connecting said second telescoping section to said first telescoping section, said first and second guide means acting to dispose said first and second telescoping sections on opposite sides of said stationary section when said sofa-bed is in the retracted position, and said guide means serving to dispose said first telescoping section, said second telescoping section and said stationary section in substantially coplanar positions relative to each other when said sofa-bed is in the extended position. 
     
     
       2. The sofa-bed according to claim 1 wherein said second telescoping section overlies said first telescoping section. 
     
     
       3. The sofa-bed according to claim 2 wherein said stationary section comprises a U-shaped frame mounting a flat, self-sustaining resilient rectangular support. 
     
     
       4. The sofa-bed according to claim 3 wherein the rearmost edge of said support is affixed to said U-shaped frame, and the frontmost edge of said support rides upon the upper surface of said second telescoping section. pg,17 
     
     
       5. The sofa-bed according to claim 4 wherein said support comprises a sheet of perforated metal mesh. 
     
     
       6. The sofa-bed according to claim 1 including an arm rest and back support section removably mounting said stationary section. 
     
     
       7. The sofa-bed according to claim 6 wherein said back rest and arm support section comprises a vertical rectangular back rest frame and two arm rest frames, and means detachably connecting said arm rest frame to said back rest frame. 
     
     
       8. The sofa-bed according to claim 7 wherein said connecting means each comprises at least one pin extending transversely of said arm rest frame and an L-shaped bracket having a first leg rigidly affixed to said back rest frame and a second leg containing at least one slot adapted to engage said at least one pin. 
     
     
       9. The sofa-bed according to claim 1 wherein said first guide means includes a hollow enclosure affixed to said first telescoping section and a rod-like member mounted on said stationary section adapted to slidably engage said enclosure. 
     
     
       10. The sofa-bed according to claim 9 wherein one end of said rod-like guide member is flanged and wherein said enclosure contains a flange-engaging restriction preventing removal of said rod-like member therefrom. 
     
     
       11. The sofa-bed according to claim 10 wherein said rod-like guide member is adjustable in length. 
     
     
       12. The sofa-bed according to claim 1 wherein said first guide member includes a lazy - tong equalizer. 
     
     
       13. The sofa-bed according to claim 1 including a footboard section comprising a rectangular frame, hinge means attaching said frame to said second telescoping section, a pair of folding legs pivotally affixed to said frame for movement from a folded to an unfolded position, and locking means to retain said legs in the unfolded position. 
     
     
       14. The sofa-bed according to claim 13 wherein said hinge means comprises a first tab projecting transversely of said frame, a link pivotally connected to said first tab, and a second tab projecting from said telescoping section and pivotally connected to said link. 
     
     
       15. The sofa-bed according to claim 14 including means for removably attaching said footboard section to said second telescoping section. 
     
     
       16. The sofa-bed according to claim 1 including a mattress having a folded and unfolded position and comprising a resilient rectangular mat with at least one area of reduced density defining a line of fold for said mattress. 
     
     
       17. The sofa-bed according to claim 7 including a mattress and mattress storage means comprising a plurality of guides angularly disposed between said stationary section and said back rest frame adapted to support said mattress when said sofa-bed is in te retracted position, straps connected to said mattress, and a pair of connectors extending from said second telescoping section adapted to engage said straps. 
     
     
       18. The sofa-bed according to claim 1 wherein said second guide means includes a pair of guide rails positioned along opposite sides of said second telescoping section, and a plurality of guide rail supports disposed along opposite sides of said first telescoping section and slidably communicating with said guide rails. 
     
     
       19. The sofa-bed according to claim 18 wherein said guide rials each comprises a Z-shaped member having a first vertical leg rigidly affixed to said second telescoping section, a horizontal section riding upon said guide rail support, and a downwardly depedning leg paralleling the line of travel of said second telescoping section. 
     
     
       20. The sofa-bed according to claim 19 wherein said guide rails each includes locking means for retaining said sofa-bed in the extended position. 
     
     
       21. The sofa-bed according to claim 20 wherein said locking means comprises a vertically offset portion of said guide rail. 
     
     
       22. The sofa-bed according to claim 21 wherein said guide rail supports comprise rotatably mounted wheels. 
     
     
       23. The sofa-bed according to claim 1 wherein said second guide means includes a lazy - tong equalizer.